Add colour to any room with this smart candelabra bulb, which offers warm to cool white light as well as 16 million colours. Use Bluetooth for instant light control in one room or connect to the Hue Bridge to unlock the full suite of features.Lumen output at 4000K :470 lmWeight :40Bulb technology :LEDLumen output at 2,700 K (out-of-the-box setting) :320 lm